<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title></title>
    <style>
        #id1
        {
            background-color: gray !important;
        }
    </style>
</head>
<body>
<div id="id1" style="background-color: red;">
    GRAY
</div>
</body>
</html>